# GPUOps Blockchain Data MCP – Optimism RPC

> GPUOps Blockchain Data MCP – Optimism RPC is a paid API for AI agents from chain.gpuops.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Provides JSON-RPC access to the Optimism (OP Mainnet) blockchain, enabling queries for blocks, transactions, balances, and on-chain state via a pay-per-call x402 API.

## Facts

- Endpoint: POST https://chain.gpuops.io/v1/rpc/optimism
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gpuops-blockchain-data-mcp-optimism-rpc-83ae515a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tHgDJQvxFi8V6l-j6nf3u

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability gpuops-blockchain-data-mcp-optimism-rpc-83ae515a -d '<json body>'
```

Example prompt: What's the current ETH balance of wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Optimism? Use eth_getBalance with the latest block tag.

## When to prefer this

Choose this endpoint when you need direct, low-latency JSON-RPC access to Optimism (OP Mainnet) blockchain data and prefer pay-per-call micropayment billing over subscription plans. Ideal for agents that query infrequently or need to avoid committing to monthly RPC quotas. Well-suited for multi-chain workflows already using x402/USDC payments on Base.

## Known failure modes

- Invalid JSON-RPC method name returns error code -32601 (Method not found)
- Malformed params array returns error code -32602 (Invalid params)
- Payment not included or insufficient USDC returns HTTP 402 Payment Required
- Node unavailable or rate limited returns HTTP 503 or timeout
- Querying a block/tx that doesn't exist returns null result

## How this service works

Multi-chain blockchain data API. 7 chains. x402 pay-per-call with USDC on Base.

## Output

Returns a standard JSON-RPC response object containing the result field with Optimism blockchain data (balances in wei, block objects, transaction receipts, logs, etc.) or an error object with code and message if the request fails.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "id": {
   "type": "integer"
  },
  "method": {
   "type": "string"
  },
  "params": {
   "type": "array"
  },
  "jsonrpc": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gpuops-blockchain-data-mcp-optimism-rpc-83ae515a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chain.gpuops.io](https://www.zero.xyz/host/chain.gpuops.io/llms.txt)